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Home >> Chevrolet >> 1990 >> Step Van 7.4 N, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 10 (Suspension - Front (4WD) - Torsion Bar) >> Removal & Installation >> Upper Control Arm & Bushings >> Installation

Upper Control Arm & Bushings: Installation

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 1990 GMC S15 Pickup, 1990 GMC S15 Jimmy, 1990 GMC Pickup, 1990 GMC Cab & Chassis, and 1990 Chevrolet S10 Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. If upper control arm bumper is deteriorated or damaged, install new bumper. On "T" Series, install upper control arm bushings with bushing service set. See Fig 2 . Press in bushing until properly seated in control arm.
    NOTE: On "K" Series, alignment angles are preset at factory. Adjusting cams are available for installation.
  2. On all models, mount control arm on vehicle. Install pivot bolts, alignment adjustment cams ("T" Series only) and NEW pivot nuts. Ensure bolts heads are facing inward.
  3. Connect steering knuckle to ball joints. Tighten all mounting fasteners. See TORQUE SPECIFICATIONS  at end of article. DO NOT tighten ball joint nut more than an additional 1/6 turn to align cotter pin hole. To complete installation reverse removal procedure. Check front end alignment and adjust as needed. See WHEEL ALIGNMENT article.
Fig 1: Exploded View of "K" Series Upper Control Arm
G71330Courtesy of GENERAL MOTORS CORP.
Fig 2: Replacing "T" Series Upper Control Arm & Bushings
G30202Courtesy of GENERAL MOTORS CORP.
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